Preflop: What you hoping to hit with your T3? Even if you hit your flush you will practically never know where you stand.

As playedPostflop: Well, exactly even that happens.
Do you think you gonna do very good here? While we are in a freeplay pot and even in a huge multiway pot. Do you expect to see a lot worse flushes? Or worse hands? Doubt he is overplaying just Ax hands here. So while I haven't really invested much into the pot I might just make the crying fold. But obviously to avoid exactly such decisions I'd rather fold preflop.